Bug 139769 - LO Draw - Export png with lines
Summary: LO Draw - Export png with lines
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Draw (show other bugs)
Version:
(earliest affected)
7.0.3.1 release
Hardware: All Windows (All)
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords: bibisected, bisected, regression
Depends on:
Blocks: Graphics-Export
  Show dependency treegraph
 
Reported: 2021-01-19 17:17 UTC by karl-heinz.behr@nway.de
Modified: 2023-10-09 17:30 UTC (History)
1 user (show)

See Also:
Crash report or crash signature:


Attachments
exported pic with lines (108.25 KB, image/png)
2021-01-19 17:20 UTC, karl-heinz.behr@nway.de
Details
source file (667.57 KB, application/vnd.oasis.opendocument.graphics)
2021-01-20 14:35 UTC, karl-heinz.behr@nway.de
Details
Kompi's PNG result (182.93 KB, image/png)
2021-03-12 20:21 UTC, Roman Kuznetsov
Details
Skia enabled vs disabled (1.46 MB, image/png)
2023-09-17 02:09 UTC, Kira Tubo
Details

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Description karl-heinz.behr@nway.de 2021-01-19 17:17:43 UTC
Description:
Whe i'm exporting a png-file in the pic there are lines.

Actual Results:
i tried it several time with the same result

Expected Results:
the same


Reproducible: Always


User Profile Reset: Yes



Additional Info:
when i copy with ctrl-c and paste it in a picture-editor pic is okay
Comment 1 karl-heinz.behr@nway.de 2021-01-19 17:20:25 UTC
Created attachment 169023 [details]
exported pic with lines
Comment 2 Telesto 2021-01-20 13:58:12 UTC
Any change to share the example file so other can try to reproduce it easily (and of course investigate the source of the issue)
Comment 3 karl-heinz.behr@nway.de 2021-01-20 14:35:37 UTC
Created attachment 169052 [details]
source file

this is the source file
Comment 4 Roman Kuznetsov 2021-03-12 20:21:51 UTC
Created attachment 170447 [details]
Kompi's PNG result

There are some white lines (it are borders between bitmaps) but they are too thin, I checked in

Version: 7.2.0.0.alpha0+ (x64) / LibreOffice Community
Build ID: 9d8accf03984a64a4105826e55b221962628eb93
CPU threads: 4; OS: Windows 6.1 Service Pack 1 Build 7601; UI render: default; VCL: win
Locale: ru-RU (ru_RU); UI: en-US
Calc: CL
Comment 5 QA Administrators 2023-03-13 03:19:48 UTC Comment hidden (obsolete)
Comment 6 Kira Tubo 2023-09-17 01:24:32 UTC
Reproducible on current stable and master builds. 

Not reproducible on v.3.3, therefore it is a regression. 

I could reproduce on 5.4.0.0.alpha (displays very faint lines if you zoom in), but strangely enough, not on 6.3.0.0.alpha or 6.4.0.0.alpha.

Version: 7.6.1.2 (X86_64) / LibreOffice Community
Build ID: f5defcebd022c5bc36bbb79be232cb6926d8f674
CPU threads: 6; OS: Windows 10.0 Build 22621; UI render: Skia/Raster; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: CL threaded

Version: 24.2.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 4b2543693ed3ffb4d9f0d70f53f32127115c128d
CPU threads: 6; OS: Windows 10.0 Build 22621; UI render: Skia/Raster; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: CL threaded
Comment 7 Kira Tubo 2023-09-17 02:09:28 UTC
Created attachment 189645 [details]
Skia enabled vs disabled

Bibisected with win64-7.0. Dev who made the commit looks to be inactive. 

Interestingly, seems to be Skia related. There looks to be a difference in quality when Skia is enabled vs. disabled (via Tools > Options > View > Use Skia for all rendering)

commit 2b4f2cdd3deb9b131ea19c91ae50e2c34f35754c	[log]
author	Luboš Luňák <l.lunak@collabora.com>	Wed Feb 26 14:57:08 2020 +0100
committer	Luboš Luňák <l.lunak@collabora.com>	Fri Feb 28 09:49:20 2020 +0100
tree 127d96d246a0e6acbecc841d395ca5ea1946919f
parent 81d982f176751a6d5f13fcb72f425a29fd077c92 [diff]

 40f10b7c9cb9a6807758423f1c03ff78609c2363 is the first bad commit
commit 40f10b7c9cb9a6807758423f1c03ff78609c2363
Author: Norbert Thiebaud <nthiebaud@gmail.com>
Date:   Fri Feb 28 02:13:17 2020 -0800

    source 2b4f2cdd3deb9b131ea19c91ae50e2c34f35754c


Version: 7.6.1.2 (X86_64) / LibreOffice Community
Build ID: f5defcebd022c5bc36bbb79be232cb6926d8f674
CPU threads: 6; OS: Windows 10.0 Build 22621; UI render: Skia/Raster; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: CL threaded